Pickup truck cargo bed tailgate frame structure

The problem of jamming caused by rust in the rear door of the pickup truck bed was solved by using flexible sealing components and locking structure, achieving a stable connection and seal between the door panel and the door frame, and reducing maintenance requirements.

CN224335434UActive Publication Date: 2026-06-09QINGLING MOTORS GRP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGLING MOTORS GRP
Filing Date
2025-05-29
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing steel frame and hinges of the rear door of pickup trucks are prone to rust when exposed to humid and salt spray environments for a long time, which can cause the door panel to jam.

Method used

A flexible sealing structure is adopted, including a first sealing component and a locking structure. The first sealing component, made of aluminum profile and waterproof rubber, is used to achieve the hinge between the door panel and the door frame. Combined with the sealing bubble tube and the locking structure, the sealing effect and stable connection are ensured.

Benefits of technology

This avoids the problem of jamming between the door panel and the door frame due to rust, reduces maintenance frequency and cost, and maintains the sealing effect and stability of the door panel and door frame.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224335434U_ABST
Patent Text Reader

Abstract

This utility model relates to a pickup truck cargo box rear door frame structure, comprising: a door frame formed on the rear perimeter along the edge of the door opening; a door panel connected to the door frame, the door panel being used to open or close the door opening; and a flexible sealing structure, including a first sealing component connected between the door panel and the door frame, the door panel being hinged to the door frame via the first sealing component. This application achieves hinged connection between the door panel and the door frame through a first sealing component made of flexible material, allowing the door panel to open or close the cargo box via the first sealing component. The first sealing component maintains a sealing effect at the connection between the door panel and the door frame, preventing rainwater or humid, salt spray environments from causing rust and deformation of the door panel or door frame, thereby avoiding jamming problems caused by rust between the door panel and the door frame. Furthermore, the first sealing component relies on elastic deformation to achieve the opening and closing of the door panel and door frame, eliminating the need for regular lubrication of metal hinges, reducing maintenance frequency and costs.
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Description

Technical Field

[0001] This utility model relates to the field of pickup truck cargo box technology, and in particular to a pickup truck cargo box rear door frame structure. Background Technology

[0002] Currently, most pickup truck rear doors use steel frames and door panels, with the door panels hinged to the steel frame via metal hinges to open and close the cargo bed. However, steel frames and hinges are prone to rust when exposed to humid, salt spray environments for extended periods, causing the door panels to jam and affecting the opening and closing of the cargo bed. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a pickup truck cargo box rear door frame structure to solve the problem that the existing pickup truck cargo box rear door steel frame and hinges are prone to rusting when exposed to humid and salt spray environments for a long time, which leads to door panel jamming.

[0004] To achieve the above and other related objectives, this utility model provides a pickup truck cargo box rear door frame structure. The pickup truck cargo box includes a front panel, a rear panel, a top cover, a bottom plate, and side panels connected together. A door opening is provided on the rear panel, and the door opening communicates with the interior of the cargo box. The pickup truck cargo box rear door structure includes:

[0005] A door frame is formed on the rear enclosure along the edge of the door opening;

[0006] A door panel, connected to the door frame, is used to open or close the doorway;

[0007] A flexible sealing structure includes a first sealing assembly connected between the door panel and the door frame, wherein the door panel is hinged to the door frame via the first sealing assembly.

[0008] Optionally, the first sealing assembly includes a first seal, a second seal, and a sealing connector. The first seal is disposed on the door frame, the second seal is disposed on the door panel, and the sealing connector is connected to the first seal and the second seal.

[0009] Optionally, the first sealing element is provided with a first groove, the second sealing element is provided with a second groove, and the sealing connector is provided with a first snap-fit ​​part and a second snap-fit ​​part, wherein the first snap-fit ​​part engages with the first groove, and the second snap-fit ​​part engages with the second groove.

[0010] Optionally, the sealing structure further includes a second sealing component disposed on the door frame, the second sealing component being pressed and sealed against the door panel.

[0011] Optionally, the second sealing assembly includes a first sealing bubble tube, a second sealing bubble tube, and a third sealing bubble tube. The first sealing bubble tube and the second sealing bubble tube are disposed opposite to each other, and the first sealing bubble tube and the second sealing bubble tube are disposed adjacent to the first sealing assembly. The third sealing bubble tube is disposed opposite to the first sealing assembly.

[0012] Optionally, the first sealing bubble tube, the second sealing bubble tube, and the third sealing bubble tube are snapped together with the door frame.

[0013] Optionally, the door panel is provided with a locking structure, which is used to cooperate with the door frame to block the door opening.

[0014] Optionally, the locking structure includes a base and a locking assembly, the base being connected to the door panel, and the locking assembly being rotatably mounted on the base.

[0015] Optionally, the locking assembly includes a driving component, a rotating rod, and a limiting component. The driving component is connected to the rotating rod, the rotating rod is rotatably connected to the base, and the limiting component is fixedly connected to the rotating rod. The driving component is used to drive the rotating rod to rotate, thereby causing the limiting component to rotate. The limiting component is used to abut against the door frame to limit the door panel.

[0016] Optionally, the base includes a connecting part, a receiving groove, and a support. The connecting part is bolted to the door panel. The receiving groove and the support are coaxially provided with a rotating hole. The rotating rod is rotatably connected to the rotating hole. The driving component includes a rod part and an operating part. The rod part is hinged to the rotating rod. The rod part and the operating part have a "T"-shaped structure. The receiving groove is used to accommodate the driving component.

[0017] As described above, this utility model has the following beneficial effects: This application achieves hinged connection between the door panel and the door frame through a first sealing component made of flexible material, allowing the door panel to be opened or closed via the first sealing component. The first sealing component maintains the sealing effect at the connection between the door panel and the door frame, preventing rainwater, moisture, or salt spray environments from causing rust and deformation of the door panel or door frame, thereby avoiding jamming problems caused by rust between the door panel and the door frame. Furthermore, the first sealing component relies on elastic deformation to achieve the opening and closing of the door panel and door frame, eliminating the need for regular lubrication of metal hinges, reducing maintenance frequency and costs. Attached Figure Description

[0018] Figure 1 The diagram shown is a structural schematic of the rear door of a pickup truck bed from a first-view perspective, as illustrated in an embodiment of this application.

[0019] Figure 2The diagram shown is a structural schematic of the rear door of a pickup truck bed from a second perspective, as illustrated in an embodiment of this application.

[0020] Figure 3 Displayed as Figure 1 A schematic diagram of the cross-sectional structure of AA;

[0021] Figure 4 Displayed as Figure 3 Enlarged schematic diagram of the structure of section B in the middle;

[0022] Figure 5 The diagram shown is a structural schematic of the first sealing assembly illustrated in an embodiment of this application.

[0023] Figure 6 The diagram shown is a first-view schematic diagram of the locking structure illustrated in an embodiment of this application.

[0024] Figure 7 The diagram shown is a second-view schematic of the locking structure illustrated in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures

[0026] 1. Rear enclosure, 2. Door frame, 3. Door panel, 4. First sealing assembly, 4. First seal, 401, 401a, 402, 402a, 403. Sealing connector, 403a, 403b, 5. First bubble tube, 501, 502, 503, 6. Base, 601. Connecting groove, 602. Support, 603. Locking assembly, 7. Drive component, 701. Rod, 701a, 701b. Rotating rod, 702. Limiting component, 703. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0028] Please see Figures 1 to 7It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components relevant to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. The structures, proportions, and sizes shown in the accompanying drawings are only for illustrative purposes and to assist those skilled in the art in understanding and reading the content disclosed in the specification. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0029] Before describing the embodiments of this utility model in detail, the application environment of this utility model will be described first. The technology of this utility model is mainly applied to the field of pickup truck cargo box technology. This utility model is used to solve the problem that the steel frame and hinges of the rear door of existing pickup trucks are prone to rusting when exposed to humid and salt spray environments for a long time, resulting in door panel jamming.

[0030] Please combine Figures 1 to 7 As shown, this utility model provides a rear door frame structure for a pickup truck cargo box.

[0031] In an exemplary embodiment of this application, the pickup truck bed includes a front enclosure, a rear enclosure 1, a top cover, a bottom plate, and side enclosures connected together. A door opening is provided on the rear enclosure 1, and the door opening communicates with the interior of the pickup truck bed. The rear door structure of the pickup truck bed includes: a door frame 2, formed on the rear enclosure 1 along the edge of the door opening; a door panel 3, connected to the door frame 2, and the door panel 3 is used to open or close the door opening; and a flexible sealing structure, including a first sealing component 4, which is connected between the door panel 3 and the door frame 2, and the door panel 3 is hinged to the door frame 2 through the first sealing component 4.

[0032] In this embodiment, the door panel 3 and the door frame 2 are hinged together by a first sealing component 4 made of flexible material, allowing the door panel 3 to open or close the cargo compartment via the first sealing component 4. The first sealing component 4 maintains a sealing effect at the connection between the door panel 3 and the door frame 2, preventing rainwater, moisture, or salt spray environments from causing rust and deformation to the door panel 3 or the door frame 2, thereby avoiding jamming problems caused by rust between the door panel 3 and the door frame 2. Furthermore, the first sealing component 4 relies on elastic deformation to achieve the opening and closing of the door panel 3 and the door frame 2, eliminating the need for regular lubrication of metal hinges, reducing maintenance frequency and costs.

[0033] It is worth noting that the door frame 2 is formed by connecting the upper crossbeam, left column, lower crossbeam, and right column in sequence. All four columns are riveted to the rear enclosure 1. The door frame 2 structure is composed of aluminum profiles and bent aluminum plates, offering advantages such as light weight, high strength, and corrosion resistance. The flexible sealing structure includes, but is not limited to, the use of rubber materials. The first sealing component 4 is made of waterproof rubber from aluminum profiles, achieving sealing and hinged connection between the door panel 3 and the door frame 2. The waterproof rubber first sealing component 4 effectively buffers the micro-deformation of the door frame 2 caused by vibration or impact and can maintain sealing performance over a long period, avoiding gap problems caused by deformation of traditional metal hinges.

[0034] In an exemplary embodiment of this application, the first sealing assembly 4 includes a first sealing member 401, a second sealing member 402, and a sealing connector 403. The first sealing member 401 is disposed on the door frame 2, the second sealing member 402 is disposed on the door panel 3, and the sealing connector 403 is connected to the first sealing member 401 and the second sealing member 402.

[0035] In this embodiment, the first sealing member 401 is fixedly connected to the door frame 2, and the second sealing member 402 is fixedly connected to the door panel 3. The first sealing member 401 and the second sealing member 402 are connected by a sealing connector 403. Since the sealing connector 403 is made of flexible rubber, the door panel 3 and the door frame 2 can be hinged, so that the door panel 3 can open and close the door opening.

[0036] It is worth noting that the first sealing element 401 is fixedly installed on the upper crossbeam of the door frame 2.

[0037] In an exemplary embodiment of this application, the first sealing member 401 is provided with a first slot 401a, the second sealing member 402 is provided with a second slot 402a, and the sealing connector 403 is provided with a first engaging portion 403a and a second engaging portion 403b. The first engaging portion 403a engages with the first slot 401a, and the second engaging portion 403b engages with the second slot 402a.

[0038] In this embodiment, the engagement of the first snap-fit ​​part 403a with the first snap-fit ​​groove 401a and the second snap-fit ​​part 403b with the second snap-fit ​​groove 402a forms a multi-dimensional mechanical locking structure, which can effectively prevent the relative displacement of the first seal 401, the second seal 402 and the sealing connector 403 in the axial and radial directions, ensuring that the three can maintain a stable connection when subjected to external forces such as vibration and pressure, and avoiding the problem of sealing connection failure due to loose connection.

[0039] In an exemplary embodiment of this application, the sealing structure further includes a second sealing component 5, which is disposed on the door frame 2 and is pressed and sealed with the door panel 3.

[0040] In this embodiment, the second sealing component 5 is directly installed on the door frame 2, forming a compression sealing structure with the door panel 3. When the door panel 3 is closed, the second sealing component 5 is compressed and undergoes elastic deformation, tightly filling the gap between the door frame 2 and the door panel 3, effectively blocking the penetration of gas or liquid.

[0041] In an exemplary embodiment of this application, the second sealing assembly 5 includes a first sealing bubble tube, a second sealing bubble tube, and a third sealing bubble tube. The first sealing bubble tube and the second sealing bubble tube are disposed opposite to each other, and the first sealing bubble tube and the second sealing bubble tube are disposed adjacent to the first sealing assembly 4. The third sealing bubble tube is disposed opposite to the first sealing assembly 4.

[0042] In this embodiment, the first sealing bubble tube and the second sealing bubble tube are arranged opposite to each other, and together with the adjacent first sealing component 4, a transverse sealing strip can be formed at the contact surface between the door frame 2 and the door panel 3; the third sealing bubble tube is arranged opposite to the first sealing component 4 to form a longitudinal sealing barrier. The spatial layout of the multiple bubble tubes achieves a comprehensive sealing effect between the door panel 3 and the door frame 2, effectively blocking the penetration of gas or liquid.

[0043] It is worth noting that the first sealing bubble tube is located on the left column, the second sealing bubble tube is located on the right column, and the third sealing bubble tube is located on the lower crossbeam.

[0044] In an exemplary embodiment of this application, the first sealing bubble tube, the second sealing bubble tube, and the third sealing bubble tube are snapped together with the door frame 2.

[0045] In this embodiment, the snap-fit ​​mechanism allows the sealing bubble tube to be quickly positioned onto the snap-fit ​​part of the door frame 2 without the need for tools. Compared with adhesive or bolt fixing, the installation time is reduced by more than 50%. The precise fit between the sealing bubble tube and the snap-fit ​​part ensures that the position of the bubble tube is fixed and avoids manual installation deviations, making it especially suitable for standardized assembly during mass production.

[0046] In an exemplary embodiment of this application, the door panel 3 is provided with a locking structure, which is used to cooperate with the door frame 2 so that the door panel 3 blocks the door opening.

[0047] In this embodiment, the door panel 3 can be fixed to the door opening position by cooperating with the locking structure and the door frame 2, ensuring that the sealing surfaces of the door panel 3 and the door frame 2 are tightly fitted. The mechanical locking force after locking can resist external forces such as wind pressure and vibration, keeping the door panel 3 in a stable sealing state. The uniform pressure applied by the locking structure can cause the sealing bubble of the second sealing component 5 to fully deform, providing the second sealing component 5 with a compression sealing pre-tightening force, so that the second sealing component 5 fills the gap between the door panel 3 and the door frame 2, forming a complete sealing barrier.

[0048] In an exemplary embodiment of this application, the locking structure includes a base 6 and a locking component 7. The base 6 is connected to the door panel 3, and the locking component 7 is rotatably mounted on the base 6.

[0049] In this embodiment, a mounting hole is provided on the door panel 3, and the mounting hole penetrates the door panel 3. The base 6 is installed in the mounting hole and connected to the door panel 3. The locking structure penetrates the door panel 3 through the base 6, with one part located on the inner side of the door panel 3 and the other part located on the outer side of the door panel 3. The part located on the outer side of the door panel 3 is used for personnel operation, and the part located on the inner side of the door panel 3 is used to cooperate with the door frame 2 to limit the position of the door panel 3.

[0050] In an exemplary embodiment of this application, the locking assembly 7 includes a driving component 701, a rotating rod 702, and a limiting component 703. The driving component 701 is connected to the rotating rod 702, the rotating rod 702 is rotatably connected to the base 6, and the limiting component 703 is fixedly connected to the rotating rod 702. The driving component 701 is used to drive the rotating rod 702 to rotate so as to drive the limiting component 703 to rotate. The limiting component 703 is used to abut against the door frame 2 to limit the door panel 3.

[0051] In this embodiment, the driving component 701 is used to drive the rotating rod 702 to rotate. The rotation of the rotating rod 702 drives the limiting component 703 to rotate. By rotating the limiting component 703 to partially overlap with the door frame 2, the door panel 3 is limited.

[0052] In an exemplary embodiment of this application, the base 6 includes a connecting part 601, a receiving groove 602, and a support 603. The connecting part 601 is connected to the door panel 3 by bolts. The receiving groove 602 and the support 603 are coaxially provided with rotating holes. The rotating rod 702 is rotatably connected to the rotating hole. The driving component 701 includes a rod part 701a and an operating part 701b. The rod part 701a is hinged to the rotating rod 702. The rod part 701a and the operating part 701b have a "T" shaped structure. The receiving groove 602 is used to accommodate the driving component 701.

[0053] In this embodiment, the connecting part 601 has multiple bolt holes, and the connecting part 601 is bolted to the outer side of the door panel 3; the support 603 is used to support the end of the rotating rod 702; the receiving groove 602 is used to receive the driving component 701, and the receiving groove 602 is a rectangular groove; the driving component 701 has a "T" shaped structure and is hinged to the rotating rod 702. The driving component 701 can rotate to be perpendicular to the axis of the rotating rod 702 or to be coincident with the axis of the rotating rod 702. When the driving component 701 is perpendicular to the axis of the rotating rod 702, the driving component 701 is retracted. The door panel 3 is housed in the receiving groove 602, and the "T"-shaped structure of the driving component 701 can form a circumferential limit on the rotating rod 702 with the rectangular structure of the receiving groove 602, thereby preventing the rotating rod 702 from rotating and avoiding the door panel 3 from falling off the locked state with the door frame 2. When the driving component 701 rotates to coincide with the axis of the rotating rod 702, the operator can drive the rod part 701a through the operating part 701b to drive the rotating rod 702 to rotate, thereby causing the limiting component 703 to rotate, changing the coincidence state of the limiting component 703 and the door frame 2, so that the door panel 3 and the door frame 2 are in the locked state or the unlocked state.

[0054] In terms of working principle, this application uses a first sealing component 4 made of flexible material to achieve a hinged connection between the door panel 3 and the door frame 2, allowing the door panel 3 to open or close the cargo compartment via the first sealing component 4. The first sealing component 4 maintains a sealing effect at the connection between the door panel 3 and the door frame 2, preventing rust and deformation caused by rainwater, moisture, or salt spray environments, thereby avoiding jamming problems caused by rust between the door panel 3 and the door frame 2. Furthermore, the first sealing component 4 relies on elastic deformation to achieve the opening and closing of the door panel 3 and the door frame 2, eliminating the need for regular lubrication of metal hinges, reducing maintenance frequency and costs.

[0055] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A pickup truck cargo box rear door frame structure, the pickup truck cargo box comprising a front panel, a rear panel, a top cover, a bottom plate, and side panels connected together, wherein a door opening is provided on the rear panel, the door opening communicating with the interior of the cargo box, characterized in that, The rear door structure of the pickup truck bed includes: A door frame is formed on the rear enclosure along the edge of the door opening; A door panel, connected to the door frame, is used to open or close the doorway; A flexible sealing structure includes a first sealing assembly connected between the door panel and the door frame, wherein the door panel is hinged to the door frame via the first sealing assembly.

2. The pickup truck cargo box rear door frame structure according to claim 1, characterized in that: The first sealing assembly includes a first sealing element, a second sealing element, and a sealing connector. The first sealing element is disposed on the door frame, the second sealing element is disposed on the door panel, and the sealing connector is connected to the first sealing element and the second sealing element.

3. The pickup truck cargo box rear door frame structure according to claim 2, characterized in that: The first sealing element has a first groove, the second sealing element has a second groove, and the sealing connector has a first snap-fit ​​part and a second snap-fit ​​part. The first snap-fit ​​part engages with the first groove, and the second snap-fit ​​part engages with the second groove.

4. The pickup truck cargo box rear door frame structure according to claim 1, characterized in that: The sealing structure further includes a second sealing component, which is disposed on the door frame and is pressed and sealed against the door panel.

5. The pickup truck cargo box rear door frame structure according to claim 4, characterized in that: The second sealing assembly includes a first sealing bubble tube, a second sealing bubble tube, and a third sealing bubble tube. The first sealing bubble tube and the second sealing bubble tube are disposed opposite to each other, and the first sealing bubble tube and the second sealing bubble tube are disposed adjacent to the first sealing assembly. The third sealing bubble tube is disposed opposite to the first sealing assembly.

6. The pickup truck cargo box rear door frame structure according to claim 5, characterized in that: The first sealing bubble tube, the second sealing bubble tube, and the third sealing bubble tube are engaged with the door frame.

7. The pickup truck cargo box rear door frame structure according to claim 1, characterized in that: The door panel is provided with a locking structure, which is used to cooperate with the door frame to seal the door opening.

8. The pickup truck cargo box rear door frame structure according to claim 7, characterized in that: The locking structure includes a base and a locking assembly. The base is connected to the door panel, and the locking assembly is rotatably mounted on the base.

9. The pickup truck cargo box rear door frame structure according to claim 8, characterized in that: The locking assembly includes a driving component, a rotating rod, and a limiting component. The driving component is connected to the rotating rod, the rotating rod is rotatably connected to the base, and the limiting component is fixedly connected to the rotating rod. The driving component is used to drive the rotating rod to rotate, thereby causing the limiting component to rotate. The limiting component is used to abut against the door frame to limit the door panel.

10. The pickup truck cargo box rear door frame structure according to claim 9, characterized in that: The base includes a connecting part, a receiving groove, and a support. The connecting part is bolted to the door panel. The receiving groove and the support are coaxially provided with a rotating hole. The rotating rod is rotatably connected to the rotating hole. The driving component includes a rod part and an operating part. The rod part is hinged to the rotating rod. The rod part and the operating part have a "T" shaped structure. The receiving groove is used to accommodate the driving component.